Home / 142,358.10-196,448.94-81,938.04

Finding the Fourth Proportional to 142,358.10, 196,448.94 and 81,938.04

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Solution

The fourth proportional to 142,358.10, 196,448.94 and 81,938.04 is: 113,071.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,358.10 : 196,448.94 = 81,938.04 : x
  2. Step 2: Convert to fraction form
    142,358.10/196,448.94 = 81,938.04/x
  3. Step 3: Cross multiply
    142,358.10x = 196,448.94 × 81,938.04
  4. Step 4: Simplify right side
    142,358.10x = 16,096,641,103.68
  5. Step 5: Solve for x
    x = 16,096,641,103.68/142,358.10
  6. Step 6: Final answer
    x = 113,071.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.